Analytical Method Source

Chlorophyll Methods

• Applicability of Chlorophyll a Methods (DEP/SAS/002/10)

SW-846 Methods

Test Methods for Evaluating Solid Waste, Physical/Chemical Methods 

• https://www.epa.gov/hw-sw846  

40 CFR Part 136.3 Methods List

• Full list of approved methods at 40 CFR Part 136.3
• Download method files at https://www.epa.gov/measurements/collection-methods#2

EPA 2017 Method Update Rule

• Federal Register, 8/28/17

40 CFR Parts 141 & 143 Methods

National Primary Drinking Water Regulations

• 40 CFR Part 141

 National Secondary Drinking Water Regulations

• 40 CFR Part 143

Clean Water Act (CWA) Analytical Methods for testing water

•  https://www.epa.gov/cwa-methods 

National Environmental Methods Index (NEMI)
Use this link to search all chemical, microbiological, biological, toxicity, and physical methods in NEMI

• https://www.nemi.gov/home/

US Geological Survey (USGS) Methods for testing (Field and Lab)

•  https://water.usgs.gov/owq/methods.html

APHA Standard Methods
Standard Methods for the Examination of Water and Wastewater methods list

• http://www.standardmethods.org

ASTM Methods (American Society of Testing Materials)

• https://www.astm.org/Standard/standards-and-publications.html

AOAC Methods
Official Methods of Analysis text by the Association of Analytical Communities

• http://www.aoac.org/News/oma_rev_3.htm  

• http://www.eoma.aoac.org/

Petroleum Methods

• FL-PRO 2018

**The DEP FL-PRO method was revised as of November 2018.  Please visit the FL-PRO Revision page where you can read a summary of the changes included in the revised method.**

Luminescent Dissolved Oxygen (LDO) - The LDO probe method is acceptable to DEP, providing that the calibration verification procedures and criteria in DEP SOPs FT 1000 and FT 1500 are strictly followed. The LDO may be used for all laboratory and field analyses for non-potable water compliance reporting, all ambient monitoring for surface water, groundwater, and wastewater, and all groundwater purge-stabilization measurements. The cited federal reference is ASTM D888-05, Standard Test Methods for Dissolved Oxygen in Water, Test Method C, Luminescence-based Sensor Procedure.

Un-ionized Ammonia SOP - Discussion of the calculation of this species